CVE-2022-49877

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49877
In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues When running `test_sockmap` selftests, the following warning appears: WARNING: CPU: 2 PID: 197 at net/core/stream.c:205 sk_stream_kill_queues+0xd3/0xf0 Call Trace: <TASK> inet_csk_destroy_sock+0x55/0x110 tcp_rcv_state_process+0xd28/0x1380 ? tcp_v4_do_rcv+0x77/0x2c0 tcp_v4_do_rcv+0x77/0x2c0 __release_sock+0x106/0x130 __tcp_close+0x1a7/0x4e0 tcp_close+0x20/0x70 inet_release+0x3c/0x80 __sock_release+0x3a/0xb0 sock_close+0x14/0x20 __fput+0xa3/0x260 task_work_run+0x59/0xb0 exit_to_user_mode_prepare+0x1b3/0x1c0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae The root case is in commit 84472b436e76 ("bpf, sockmap: Fix more uncharged while msg has more_data"), where I used msg->sg.size to replace the tosend, causing breakage: if (msg->apply_bytes && msg->apply_bytes < tosend) tosend = psock->apply_bytes;

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7 Patch
https://git.kernel.org/stable/c/8ec95b94716a1e4d126edc3fb2bc426a717e2dba Patch
https://git.kernel.org/stable/c/95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb Patch
https://git.kernel.org/stable/c/cc21dc48a78cc9e5af9a4d039cd456446a6e73ff Patch
https://git.kernel.org/stable/c/d975bec1eaeb52341acc9273db79ddb078220399 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
History

10 Nov 2025, 21:05

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7 - () https://git.kernel.org/stable/c/14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7 - Patch
References () https://git.kernel.org/stable/c/8ec95b94716a1e4d126edc3fb2bc426a717e2dba - () https://git.kernel.org/stable/c/8ec95b94716a1e4d126edc3fb2bc426a717e2dba - Patch
References () https://git.kernel.org/stable/c/95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb - () https://git.kernel.org/stable/c/95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb - Patch
References () https://git.kernel.org/stable/c/cc21dc48a78cc9e5af9a4d039cd456446a6e73ff - () https://git.kernel.org/stable/c/cc21dc48a78cc9e5af9a4d039cd456446a6e73ff - Patch
References () https://git.kernel.org/stable/c/d975bec1eaeb52341acc9273db79ddb078220399 - () https://git.kernel.org/stable/c/d975bec1eaeb52341acc9273db79ddb078220399 - Patch
CPE cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo

02 May 2025, 13:52

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, sockmap: corrige la advertencia sk-&gt;sk_forward_alloc de sk_stream_kill_queues Al ejecutar las pruebas automáticas `test_sockmap`, aparece la siguiente advertencia: ADVERTENCIA: CPU: 2 PID: 197 en net/core/stream.c:205 sk_stream_kill_queues+0xd3/0xf0 Seguimiento de llamadas: inet_csk_destroy_sock+0x55/0x110 tcp_rcv_state_process+0xd28/0x1380 ? tcp_v4_do_rcv+0x77/0x2c0 tcp_v4_do_rcv+0x77/0x2c0 __release_sock+0x106/0x130 __tcp_close+0x1a7/0x4e0 tcp_close+0x20/0x70 inet_release+0x3c/0x80 __sock_release+0x3a/0xb0 sock_close+0x14/0x20 __fput+0xa3/0x260 task_work_run+0x59/0xb0 exit_to_user_mode_prepare+0x1b3/0x1c0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae El caso raíz está en el commit 84472b436e76 ("bpf, sockmap: Arreglar más archivos no cargados mientras msg tiene more_data"), donde utilicé msg-&gt;sg.size para reemplazar tosend, lo que causó fallas: if (msg-&gt;apply_bytes &amp;&amp; msg-&gt;apply_bytes &lt; tosend) tosend = psock-&gt;apply_bytes;

01 May 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-01 15:16

Updated : 2025-11-10 21:05

NVD link : CVE-2022-49877

Mitre link : CVE-2022-49877

CVE.ORG link : CVE-2022-49877

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo